HP Tuners
HP Tuners RTD 4 - Blank
HP Tuners RTD 4 - Blank
SKU: SKU:R04-PL0-00-RED
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The HP Tuners RTD4 is the next generation of Remote Tuning Devices, built for seamless wireless tuning, diagnostics, and datalogging. Designed specifically for professional tuner workflows, the RTD4 works hand-in-hand with the HP Tuners Tune Delivery Network (TDN) to deliver Dieselr’s custom calibrations directly to your vehicle — no laptop required.
The RTD4 is currently on back order. In-stock items in your order will ship first, while the RTD4 will follow as soon as inventory arrives.
You can still get started right away: follow the post-purchase email to begin the HP Tuners E42 ECM Upgrade service process. This lets you move forward while the RTD4 ships separately.
Key Features:
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Supports 300+ Vehicle Controllers – Compatible with the latest HP Tuners-supported platforms, including CAN and VPP protocols.
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Wireless Tuning via TDN App – Flash tunes, send datalogs, and receive updates right from your iOS or Android device.
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Diagnostics Anywhere – Read and clear DTCs on the go.
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Faster Transfer Speeds – Built-in Wi-Fi hardware (enabled with future firmware update) for rapid file delivery and logging.
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Secure Workflow – Customers cannot access VCM Editor, ensuring calibration integrity and tuner IP protection.
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Fully Compatible with VCM Scanner – For complete diagnostics and logging functionality.
How It Works:
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Read your vehicle’s data using the RTD4.
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Send files to Dieselr’s tuning team via the free TDN app.
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Receive your custom calibration.
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Flash directly from your smartphone.
Why Choose the RTD4 from Dieselr?
We don’t just sell you the device — we connect you to our tuning network for precise, dyno-tested calibrations built for real-world drivability and performance. Whether you’re on the track, trail, or highway, the RTD4 gives you professional-grade tuning power in your pocket.
Note: Base price is for the RTD4 device only. HP Tuners adapter cables, credits, and tuning are sold separately. See Dieselr’s tuning section to bundle with your specific vehicle.






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